author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 18 Aug 2010 09:37:47 +0300 | |
changeset 59 | 16ed8d08d0b1 |
parent 54 | 997a02608b3a |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: NMailUI web viewer. Inherits from |
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* QGrapohicsWebView and handles gestures, etc. |
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*/ |
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|
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#include "nmuiheaders.h" |
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|
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/*! |
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Constructor. |
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*/ |
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NmMailViewerWK::NmMailViewerWK() |
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: QGraphicsWebView(), |
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mContent(), |
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mSuppressRelease(false) |
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{ |
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// Subscribe this widget to tap and pinch gestures. |
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grabGesture(Qt::TapGesture); |
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grabGesture(Qt::PinchGesture); |
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// Prevent this widget from accepting focus. |
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setFocusPolicy(Qt::NoFocus); |
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} |
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|
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/*! |
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Destructor. |
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*/ |
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NmMailViewerWK::~NmMailViewerWK() |
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{ |
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mContent.clear(); |
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} |
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|
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/*! |
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Adds content into web view. |
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*/ |
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void NmMailViewerWK::addContent(QString key, QVariant val, NmId partId, bool isFetched) |
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{ |
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mContent[key] = NmMailViewerWkContentItem(val, partId, isFetched); |
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} |
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/*! |
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Returns resource from added content. |
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*/ |
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QVariant NmMailViewerWK::loadResource(int type, const QUrl &name, NmId &partId, bool &isFetched) |
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{ |
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NM_FUNCTION; |
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if (type == QTextDocument::ImageResource) { |
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QString key = '<' + name.path() + '>'; |
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if (!mContent.contains(key)) { |
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key = name.path(); |
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} |
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if (mContent.contains(key)) { |
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partId = mContent[key].mPartId; |
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isFetched = mContent[key].mIsFetched; |
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return mContent[key].mData; |
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} |
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} |
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return 0; |
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} |
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|
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/*! |
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This is the main event handler that processes all incoming events in an |
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appropriate manner. |
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*/ |
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bool NmMailViewerWK::event(QEvent* event) |
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{ |
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bool consumed = false; |
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if (event) { |
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switch (event->type()) { |
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case QEvent::Gesture: |
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// Handle gesture events. |
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gestureEvent(static_cast<QGestureEvent*>(event)); |
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consumed = event->isAccepted(); |
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break; |
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case QEvent::GraphicsSceneContextMenu: |
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// Handle context-menu events. |
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// contextMenuEvent() is invoked directly in order to override |
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// text selection in QWebPage. |
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contextMenuEvent(static_cast<QGraphicsSceneContextMenuEvent*>(event)); |
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consumed = event->isAccepted(); |
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break; |
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default: |
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// Invoke base class' event handler. |
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consumed = QGraphicsWebView::event(event); |
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break; |
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} |
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} |
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return consumed; |
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} |
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/*! |
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Handles context-menu events. |
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*/ |
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void NmMailViewerWK::contextMenuEvent(QGraphicsSceneContextMenuEvent* event) |
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{ |
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if (event) { |
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// Suppress context-menu invocations. |
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event->accept(); |
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} |
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} |
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|
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/*! |
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Handles gesture events. |
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*/ |
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void NmMailViewerWK::gestureEvent(QGestureEvent* event) |
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{ |
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if (event) { |
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if (QTapGesture* tap = static_cast<QTapGesture*>(event->gesture(Qt::TapGesture))) { |
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switch (tap->state()) { |
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case Qt::GestureCanceled: |
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// Tap cancellation suppresses the following mouse release. |
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mSuppressRelease = true; |
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break; |
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default: |
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// Other states disclose the following mouse release. |
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mSuppressRelease = false; |
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break; |
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} |
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event->accept(); |
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} |
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if (QPinchGesture* pinch = static_cast<QPinchGesture*>(event->gesture(Qt::PinchGesture))) { |
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// Handle pinch (zoom). |
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// At the moment we simply consume the event. |
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event->accept(); |
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} |
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} |
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} |
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|
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/*! |
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Handles double-click events. |
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*/ |
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void NmMailViewerWK::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event) |
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{ |
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if (event) { |
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// Handle double clicks (instant zoom). |
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// At the moment we simply consume the event. |
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event->accept(); |
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} |
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} |
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|
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/*! |
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Handles mouse-move events. |
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*/ |
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void NmMailViewerWK::mouseMoveEvent(QGraphicsSceneMouseEvent* event) |
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{ |
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if (event) { |
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// Suppress drag selection. |
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event->accept(); |
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} |
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} |
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|
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/*! |
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Handles mouse-release events. |
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*/ |
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void NmMailViewerWK::mouseReleaseEvent(QGraphicsSceneMouseEvent* event) |
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{ |
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if (event) { |
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// Suppress mouse release if the previous tap was cancelled. |
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// Otherwise, invoke the base class' event handler. |
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if (mSuppressRelease) { |
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event->accept(); |
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} else { |
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QGraphicsWebView::mouseReleaseEvent(event); |
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} |
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} |
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} |